import { OnChanges, TemplateRef, ViewContainerRef } from '@angular/core';
import * as i0 from "@angular/core";
export declare class ForDirective implements OnChanges {
    private readonly vcr;
    ngForOf: unknown[] | null;
    ngForElse?: TemplateRef<unknown>;
    ngForEmpty?: TemplateRef<unknown>;
    private viewRef?;
    constructor(vcr: ViewContainerRef);
    ngOnChanges(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ForDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<ForDirective, "[ngFor][ngForOf][ngForElse],[ngFor][ngForOf][ngForEmpty]", never, { "ngForOf": "ngForOf"; "ngForElse": "ngForElse"; "ngForEmpty": "ngForEmpty"; }, {}, never>;
}
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